The old map fell to pieces [=came apart, fell apart] in my hands.旧地图在我手里成了碎片。

His life fell to pieces after his divorce.离婚后他的人生被毁掉了。

She falls to pieces [=breaks down] when she tries to talk about the accident.当她试图谈论那起事故时，她的感情失控了。

When he heard the bad news, he just fell to pieces. [=he started to cry]听到噩耗，他哭了起来。